Filtering device for seawater source heat pump
By designing a filtration device for seawater source heat pumps, the separation and automatic cleaning of seawater and sand have been achieved, solving the problem of reduced equipment lifespan caused by sand and gravel impurities in seawater source heat pump systems, and improving the service life of the equipment and the convenience of the filtration components.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YANTAI PORT GRP CO LTD
- Filing Date
- 2025-06-10
- Publication Date
- 2026-05-15
AI Technical Summary
In seawater source heat pump systems, the sand and shell fragments carried by seawater as it enters the heat pump unit through the delivery pipeline can reduce the service life of the equipment.
A filtration device for seawater source heat pumps was designed, including a separation shell, a separation ring, a separation cylinder, a filter assembly, and a cleaning assembly. Seawater is filtered through the gap between the separation shell and the support ring. The filter screen is fixed by the interlocking structure of the sawtooth groove and sawtooth column. Combined with the motor-driven spiral conveyor, sand and gravel are automatically cleaned, thus achieving the separation and filtration of seawater and sand and gravel.
It effectively reduces the amount of sand and impurities entering the heat pump unit, extends the service life of the seawater source heat pump, and simplifies the installation and cleaning process of the filter components.
Smart Images

Figure CN224236223U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of seawater filtration technology for heat pump systems, and relates to a filtration device for seawater source heat pumps. Background Technology
[0002] Seawater source heat pumps are renewable energy systems that utilize seawater as a low-temperature heat source. Based on the reverse Carnot cycle principle, heat energy transfer is achieved through refrigerant phase change. In winter heating mode, the evaporator absorbs solar energy stored in seawater, which is then heated to 35-55°C by the compressor before supplying heat to the building. In summer cooling mode, the system operates in reverse, discharging waste heat from the building into the seawater. Its energy efficiency ratio can reach 4.0-5.5, saving 30% to 50% more energy than traditional air conditioning systems.
[0003] Seawater source heat pumps are mainly used in building energy supply and industrial settings in coastal areas. They are particularly suitable for places that require a stable source of heat and cold throughout the year. In the civil and commercial fields, they are widely used in seaside hotels, resorts, port facilities, and medical and educational institutions for purposes such as pool temperature control, combined heating and cooling in guest rooms, cold chain logistics, and precision air conditioning.
[0004] However, in the original operation of the seawater source heat pump system, when seawater enters the heat pump unit through the delivery pipeline, the sand and shell fragments it carries will reduce the service life of the seawater source heat pump. Utility Model Content
[0005] The technical problem this invention aims to solve is that, during the operation of the original seawater source heat pump system, the sand and shell fragments carried by seawater when it enters the heat pump unit through the delivery pipeline will reduce the service life of the seawater source heat pump.
[0006] The present invention discloses a filtration device for a seawater source heat pump, comprising a separation shell, an inlet pipe a fixedly connected to the outer side of the upper end of the separation shell, a connecting block installed on the inner side of the separation shell, a support ring provided on the inner side of the separation shell, the connecting block being fixedly connected to the support ring, a separation ring fixedly connected to the inner side of the upper end of the support ring, a separation cylinder fixedly connected to the lower end of the support ring, a collection box installed at the lower end of the separation shell, a drain pipe provided on the outer side of the separation shell, a cleaning component provided at the lower end of the collection box, and a filtration component provided between the separation shell and the drain pipe.
[0007] The filter assembly includes a support base, the upper end of the separation shell is equipped with the support base, the upper end of the support base is fixedly connected to a support frame, the outer side of the upper end of the support frame is fixedly connected to a threaded ring, the end of the drain pipe near the threaded ring is rotatably connected to a sealing shell, the sealing shell is sleeved on the outer side of the threaded ring and threadedly connected to the threaded ring, and a filter mechanism is provided on the inner side of the support frame.
[0008] The filtration mechanism includes a serrated groove. The inner sides of the support frame and the threaded ring are both fixedly provided with serrated grooves. A serrated column is slidably engaged on the inner side of the serrated groove, and a limit ring is fixedly connected to the upper end of the serrated column.
[0009] The inner side of the serrated column is fixedly connected with a primary filter screen, a secondary filter screen, and a high-grade filter screen from bottom to top.
[0010] The cleaning assembly includes a conveying shell, the lower end of the collection box is fixedly connected to the conveying shell, the inner side of the conveying shell is rotatably connected to a spiral conveying paddle, the connection between the conveying shell and the collection box is provided with a feed inlet, and the end of the conveying shell away from the feed inlet is provided with a discharge outlet.
[0011] A motor housing is fixedly connected to the end of the conveyor housing, and a servo motor is fixedly connected to the inner side of the motor housing. The output end of the servo motor is fixedly connected to the propeller.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] This invention separates water and sand from seawater using a separation ring and a separation cylinder, leaving the sand inside the collection box. Meanwhile, the water filtered by the separation ring and separation cylinder moves upward through the gap between the separation shell and the support ring and is filtered by the filter assembly, thereby reducing the amount of sand and impurities entering the seawater source heat pump and thus improving the service life of the seawater source heat pump.
[0014] This invention uses a sealed outer shell and a threaded ring to compress and limit the ring, and a sawtooth column to engage with a sawtooth groove, thereby fixing the sawtooth column and reducing its shaking when impacted by seawater. This improves the service life of the filter assembly and makes the filter assembly easy and convenient to install.
[0015] This invention uses a motor housing to drive a spiral conveyor paddle to rotate, thereby enabling the device to automatically clean sand and gravel. Attached Figure Description
[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0018] Figure 2 This is a schematic diagram of the structure between the detachable outer shell and the support base of this utility model.
[0019] Figure 3 This is a schematic diagram of the internal structure of the detachable outer shell of this utility model.
[0020] Figure 4 This is a structural schematic diagram of the filter assembly of this utility model.
[0021] Figure 5 This is a schematic diagram of the cleaning component of this utility model.
[0022] In the diagram: 101, Separating outer shell; 102, Water inlet pipe a; 103, Connecting block; 104, Support ring; 105, Separating ring; 106, Separating cylinder; 107, Gathering box; 108, Drain pipe; 201, Support base; 202, Support frame; 203, Threaded ring; 204, Sealing outer shell; 301, Serrated groove; 302, Serrated column; 303, Limiting ring; 401, High-grade filter screen; 402, Medium-grade filter screen; 403, Primary filter screen; 501, Conveying shell; 502, Spiral conveyor; 503, Feed inlet; 504, Discharge outlet; 601, Motor housing; 602, Servo motor. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0024] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.
[0025] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.
[0026] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0027] Example 1
[0028] like Figure 1 - Figure 5As shown, a filtration device for a seawater source heat pump includes a separation shell 101. A water inlet pipe a102 is fixedly connected to the outer side of the upper end of the separation shell 101. A connecting block 103 is installed on the inner side of the separation shell 101. A support ring 104 is provided on the inner side of the separation shell 101. The connecting block 103 is fixedly connected to the support ring 104. A separation ring 105 is fixedly connected to the inner side of the upper end of the support ring 104. A separation cylinder 106 is fixedly connected to the lower end of the support ring 104. A collection box 107 is installed at the lower end of the separation shell 101. A drain pipe 108 is provided on the outer side of the separation shell 101. A cleaning component is provided at the lower end of the collection box 107. A filtration component is provided between the separation shell 101 and the drain pipe 108.
[0029] During operation, the inlet pipe a102 is connected to the outlet pipe of the previous stage, and the drain pipe 108 is installed at the inlet pipe of the seawater source heat pump. When the outlet pipe of the previous stage delivers seawater to the inlet pipe a102, the seawater enters the inner side of the support ring 104 through the inlet of the connecting block 103 and the support ring 104. Then, the water and sand in the seawater are separated by the separation ring 105 and the separation cylinder 106, so that the sand and gravel are left inside the collection box 107. At the same time, the water filtered by the separation ring 105 and the separation cylinder 106 moves upward through the gap between the separation shell 101 and the support ring 104, and is filtered by the filter assembly, thereby reducing the sand and impurities entering the seawater source heat pump and thus improving the service life of the seawater source heat pump.
[0030] Example 2
[0031] like Figure 1 - Figure 5 As shown, the filter assembly includes a support base 201. The support base 201 is installed on the upper end of the separation housing 101. A support frame 202 is fixedly connected to the upper end of the support base 201. A threaded ring 203 is fixedly connected to the outer side of the upper end of the support frame 202. A sealing housing 204 is rotatably connected to one end of the drain pipe 108 near the threaded ring 203. The sealing housing 204 is sleeved on the outer side of the threaded ring 203 and threadedly connected to the threaded ring 203. A filter mechanism is provided on the inner side of the support frame 202.
[0032] The filtration mechanism includes a serrated groove 301. The inner sides of the support frame 202 and the threaded ring 203 are both fixedly provided with serrated grooves 301. A serrated column 302 is slidably engaged on the inner side of the serrated groove 301. A limit ring 303 is fixedly connected to the upper end of the serrated column 302.
[0033] The inner side of the serrated column 302 is fixedly connected from bottom to top to a primary filter screen 403, a secondary filter screen 402, and a high-grade filter screen 401.
[0034] During operation, the serrated column 302 is moved so that it slides into the inner side of the serrated groove 301. Then, the sealing housing 204 is rotated so that it is threadedly connected to the threaded ring 203. The sealing housing 204 and the threaded ring 203 press against the limiting ring 303, and the serrated column 302 is engaged with the serrated groove 301, thereby fixing the serrated column 302. This reduces the shaking of the serrated column 302 when impacted by seawater, thus improving the service life of the filter assembly and making the filter assembly easy and convenient to install.
[0035] Example 3
[0036] like Figure 1 - Figure 5 As shown, the cleaning assembly includes a conveying shell 501. The lower end of the collection box 107 is fixedly connected to the conveying shell 501. A spiral conveying paddle 502 is rotatably connected to the inner side of the conveying shell 501. An inlet 503 is provided at the connection between the conveying shell 501 and the collection box 107. A discharge port 504 is provided at the end of the conveying shell 501 away from the inlet 503.
[0037] A motor housing 601 is fixedly connected to the end of the conveying housing 501, and a servo motor 602 is fixedly connected to the inner side of the motor housing 601. The output end of the servo motor 602 is fixedly connected to the spiral conveying paddle 502.
[0038] During operation, when it is necessary to clean the sand and gravel inside the collection box 107, the motor housing 601 is started, causing the output end of the motor housing 601 to drive the screw conveyor 502 to rotate, thereby conveying the sand and gravel inside the collection box 107 to the discharge port 504, and then conveying it to the next process flow through the discharge port 504. The motor housing 601 drives the screw conveyor 502 to rotate, thereby enabling the device to automatically clean the sand and gravel.
[0039] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. The present utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A filtration device for a seawater source heat pump, characterized in that: The system includes a separating shell (101), an inlet pipe a (102) fixedly connected to the outer side of the upper end of the separating shell (101), a connecting block (103) installed on the inner side of the separating shell (101), a support ring (104) provided on the inner side of the separating shell (101), the connecting block (103) and the support ring (104) fixedly connected, a separating ring (105) fixedly connected to the inner side of the upper end of the support ring (104), a separating cylinder (106) fixedly connected to the lower end of the support ring (104), a collection box (107) installed at the lower end of the separating shell (101), a drain pipe (108) provided on the outer side of the separating shell (101), a cleaning component provided at the lower end of the collection box (107), and a filter component provided between the separating shell (101) and the drain pipe (108).
2. The filtration device for a seawater source heat pump according to claim 1, characterized in that: The filter assembly includes a support base (201), the upper end of the separation shell (101) is equipped with the support base (201), the upper end of the support base (201) is fixedly connected to a support frame (202), the outer side of the upper end of the support frame (202) is fixedly connected to a threaded ring (203), the end of the drain pipe (108) near the threaded ring (203) is rotatably connected to a sealing shell (204), the sealing shell (204) is sleeved on the outer side of the threaded ring (203) and threadedly connected to the threaded ring (203), and a filter mechanism is provided on the inner side of the support frame (202).
3. A filtration device for a seawater source heat pump according to claim 2, characterized in that: The filtration mechanism includes a serrated groove (301). The inner sides of the support frame (202) and the threaded ring (203) are both fixedly provided with serrated grooves (301). A serrated column (302) is slidably engaged on the inner side of the serrated groove (301). A limit ring (303) is fixedly connected to the upper end of the serrated column (302).
4. A filtration device for a seawater source heat pump according to claim 3, characterized in that: The serrated column (302) has a primary filter screen (403), a secondary filter screen (402), and a high-grade filter screen (401) fixedly connected from bottom to top on its inner side.
5. A filtration device for a seawater source heat pump according to claim 1, characterized in that: The cleaning assembly includes a conveying shell (501), the lower end of the collection box (107) is fixedly connected to the conveying shell (501), the inner side of the conveying shell (501) is rotatably connected to a spiral conveying paddle (502), an inlet (503) is provided at the connection between the conveying shell (501) and the collection box (107), and a discharge port (504) is provided at the end of the conveying shell (501) away from the inlet (503).
6. A filtration device for a seawater source heat pump according to claim 5, characterized in that: The end of the conveying shell (501) is fixedly connected to a motor shell (601), and the inner side of the motor shell (601) is fixedly connected to a servo motor (602). The output end of the servo motor (602) is fixedly connected to the spiral conveying paddle (502).